What mass of Carbon-14 must be in a sample to have an activity of 2.00 mCi?

Q: Q3 - 15 mL of 0.03 M Pb(NO3)2 is added to 20 mL of 0.2 M NaCl. Predict if precipitate of PbCl2 will…

A: The volume of 0.03 M Pb(NO3)2 = 15 mL The volume of 0.2 M NaCl = 20 mL Ksp of PbCl2 = 1.6×10-5 We…

Q: 11. What chemical reaction(s) would occur if NaOH were used instead of NaHCO3 to react with cocaine…

A: We have find out, What chemical reaction would occur if NaOH were used instead of NaHCO3 to react…

Q: The overall formation constant for Fe(CN)6³- is 1.0x104². K₁= [Fe(CN)6³-] [Fe³+][CN 16 -=1.0×104² 3-…

A: Given :  Kf = 1.0 x 1042  [Fe+3] = 0.15 M  [CN-] = 1.20 M

Q: Use the half-reaction method to balance following equation in basic solution :- 23+ Fe²+ + Monof →…

A:

Q: To what weight of AICI3 would 0.280 g of AgCl correspond? Atomic weights for Ag = 108, CI = 35, Al =…

A: For weight of AlCl3 to weight of 0.280 g of AgCl we have to calculate mole of each. Weight of AlCl3…

Q: a. Select the correct coefficients to balance the following equation: K3PO4 + Ca(NO3)2 → KNO3 +…

A: ✓A double displacement reaction is also known as salt metathesis reaction, double replacement…

Q: 4 (a) Calculate the value of Kc for the reaction: PC15 (g) PC13 Cl2 (g) + (g) AH = Positive Given…

A: As per Le chateliers principle, when a system under equilibrium is subjected to any kind of stress,…

Q: Problem Solving: Solve the following problems based on the given data. 1. For the reaction at 25° C,…

A: Given :  Temperature = 25 °C = 298 K  (a) ∆H° = +137 KJ , ∆S° = 120 J/K  (b) ∆H° = -241.82 KJ , ∆S°…

Q: To what weight of AICI3 would 0.280 g of AgCl correspond? Atomic weights for Ag = 108, Cl = 35, Al =…

A: Molecular weight of AgCl = (108 + 35 ) = 143 g/mol  So, 143 g AgCl = 1 mol AgCl  1 g AgCl = 1/143 =…

Q: The thiocyanate ion, SCN‒, can form bonds to metals through either S or N (see Problem 5.23). What…

A: Ligand can be defined as the species that can donate electrons to metal. For example ammonia,…

Q: Consider the equilibrium, BaSO4 (s) ⇌ Ba2+ (aq) + SO42- (aq)  for which ΔH > 0. How will heating…

A: The given equilibrium reaction isBaSO4 (s) ⇌ Ba2+ (aq) + SO42- (aq) for which ΔH > 0

Q: 47. If a sample of carbon tetrafluoride contains 15.7 g of fluorine, how many grams of carbon does…

A:

Q: (Hand by written ans.)1. A buffer solution was prepared by dissolving 0.15 mol of sodium ethanoate…

A: here we are required to find the change in pH when 1.0 ml of 1.0 mol /L   hydrochloric acid is added…

Q: Many reactions that are thermodynamically possible do not occur at an appreciable rate because of…

A: If the Gibbs free energy of a reaction is negative then such reactions are spontaneous in nature.…

Q: Identify the lipids from the following molecules OH НО. 0 CH- 0 C=0 C=0 CH₂ CH CH₂ CH₂ CH₂ CH₂ CH₂…

A:

Q: Homework Q1:- Find the external work done by the system in kcal, when 10 kcal of heat is supplied to…

A:

Q: 6.) Diethyl ether is a volatile, highly flammable organic liquid that is used mainly as a solvent.…

A:

Q: Draw all the possible geometric isomers for [CoBrCl(NH3)2(ox)]–.

A:

Q: Given are the values of a titration experiment of lake water: H2SO4 volume= 25ml H2SO4 diluted to:-…

A: Given that -  Volume of Lake water containing sulfuric acid = 25 mL  Volume of Lake water after 10%…

Q: 1. For the chelating reaction Co3+ + 3 en → [Co(en)3]³+ a) Show chemical equations and write…

A:

Q: Element X is a metal with a valency 2. Element Y is a non-metal with a valency 3 (a) Write equations…

A:

Q: is 2Na(s)+Cl2=2NaCl(s) a redox reaction?

A: In redox reaction , oxidation and reduction occurs simultaneously. The substance which undergoes…

Q: 1. Predict the structure of the amino acid produced by using the starting material the following and…

A:

Q: A fungus that grows on peanuts produces a deadly toxin. When ingested in large amounts, this toxin…

A: ✓There are two types of fungus found in nature (a) Poisonous  (b) Beneficial

Q: isomers : Brom-3-methylpenbare hasthree 1 - Bromo 3-methylpentang 2- Bromo -3-methylpenbare, Bromo…

A:

Q: How does the membrane permeability to Na+ and K+ change during depolarization, repolarization

A: 1)rapid increase in Na+ permeability(depolarisation) 2)slow increase in K+ permeability 3)slow…

Q: To what weight of AICI3 would 0.280 g of AgCl correspond? Atomic weights for Ag = 108, Cl = 35, Al =…

A: Given that -  Weight of AgCl = 0.280 g  Atomic masses of different atoms are -  Ag = 108 , Cl = 35,…

Q: Q3. As the particle size is reduced to nanoscale, the band gap will..... O Decrease Increase

A: According to chemical bonding, valence electrons take part in chemical bond formation.

Q: If 1.00 mol of argon is placed in a 0.500-L container at 26.0 °C, what is the difference between the…

A: Given that, for the argon gas The number of moles is n = 1 mole, The volume is V = 0.500 L, The…

Q: Drop of water was placed on a hot thin surface and covered by an upturned Petry dish. A cold metal…

A: Spontaneous process can be defined as the process that occur by itself without any external source…

Q: A chemist designs a galvanic cell that uses these two half-reactions: half-reaction Br₂(1)+2e → 2 Br…

A: The half reaction which have more positive value of E°red would be on cathode as it tends to get…

Q: 8) To determine the identity of a weak acid, the acid-base titration reaction was performed.…

A: Given :  Volume of NaOH = 15.0 ml Concentration of NaOH = 0.1008 M  Mass of acid sample = 0.2053 gm

Q: Process of Sulfonation. Please explain in detail and clearly. Thank you so much!

A: Sulfonation : It  is any of the several methods by which the sulfonic acids are prepared. The…

Q: Determine the reagents that would yield show the intermediates. 2 the product.

A: Here we have to synthesize the following given compound cyclopentanone from methyl cyclopentane…

Q: A 50.00-mL aliquot of 0.1000 M NaOH is titrated with 0.1000 M HCl. Calculate the pH of the solution…

A:

Q: Determine the products of the following coaction__ CH3 CH3 - CH-CLOH: NC07 2 11₂504 C13 A) SH3 CH3 -…

A:

Q: Q6/ 15 mL of 0.03 M Pb(NO3)2 is added to 20 mL of 0.2 M NaCl. Predict if precipitate of PbCl2 will…

A:

Q: D. isoamyl alcohol 38. An aromatic ring should satisfy Huckel's rule, wherein the number of…

A: Aromatic compounds are those which obey Huckel rule and which has 4n + 2 pie electrons.

Q: 00 trum IR Spectrum (liquid fem) 4000 100 80 60 % of base peak 3000 54 68 40 13C NMR Spectrum (100…

A:

Q: 2b) Gold (Au) crystallizes in a cubic close-packed structure (face centered cubic unit cell). The…

A: #Q.2.(b): Molar mass of Gold, M = 196.967 g/mol In FCC, 1 atom is present at each of the 6 faces…

Q: Please explain mechanism of action and major product?

A:

Q: What mode of chromatographic separation (RPLC, NPLC, HILIC, SEC, IEX) is best used for the…

A: Chromatographic mode of separation is RPLC

Q: What is the sign of the change in entropy of: Heating liquid water to its boiling point

A: Given  sign of the change in entropy of: Heating liquid water to its boiling point

Q: KCO3 + Br ⟶ KBr + CO2 + KBrO3 balance The redox reaction and include the computation of oxidation…

A: Redox reaction can be defined as the reaction in which both process of oxidation and reduction…

Q: A nitrogen molecule (N₂) having the average kinetic energy at 290 K is released from Earth's surface…

A:

Q: Q1:- Find the external work done by the system in kcal, when 10 kcal of heat is supplied to the…

A: First law of thermodynamics would be used to calculate work done by system.    Note : As you have…

Q: How many grams of Ag are contained in a precipitate of AgCl that weights 0.3 g? Atomic weights for…

A: Given  Mass of AgCl = 0.3 g Mass of Ag = ?

Q: Add hydrogen atoms to the first hydrocarbon. H H X-T H C Incorrect Add hydrogen atoms to the second…

A:

Q: 1. Determine the no. of independent variables that shall be specified, in order to define the close…

A: PHASE RULE

Q: What mode of chromatographic separation (RPLC, NPLC, HILIC, SEC, IEX) is best used for the specified…

A: MSG is used in food as taste enhancer. Generally it is added in soup types of food.

Writing and Balancing Nuclear Equations

A nuclear equation is a symbolic representation of a nuclear reaction using certain symbols. It is studied in nuclear chemistry and nuclear physics.